Question: Tell me linear combination whose name has the word principle in it.
Paraphrase: Let me know straight combination whose title has the word guideline in it.
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q27628 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'principle')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: superposition principle, superposition principle